voters in bosnia are heading to the polls in local elections on sunday. the ballot is widely expected to see an ethnic serbs become mayor of srebrenica for the first time since the 1995 massacre. >> for 7 years, a muslim has been mayor there. >> the mood is tense in srebrenica. people are nervous as elections near after weeks of campaigning. >> many here -- for the first time since the end of the war, the town could be led by one of their own, by a serb mayor. until now, srebrenica has been run by a representative of the town's muslims, the minority after the massacre. the exception in the law no longer applies. many muslims are horrified at the looming changes. back in april, they lobbied the u.s. ambassador, hoping to convince him they needed a speak for their interests. they did not get what they wanted. >> the united states expects that whoever is elected mayor of this community will work very hard for reconciliation and will be working for all the citizens of the city. >> survivors find that hard to believe. >> just a thought of someone becoming mayo